JK-VS-S23A Visible Spectrophotometer is designed for the
purpose of education and general analysis in low cost. It
can use Φ10-Φ16mm tube or rectangular cuvette in sample
department, high reliable and operate easily. It can be used
for environmental protection、education
etc , qualitative analysis & quantitative analysis can be
done.

It adopts a grating monochromator, so that it has the
advantage of high wavelength precision and good
monochromaticity.

Computer control system, precise automatic T/A changeover。Automatic
zero and full scale adjustment。Direct
concentration read-out and concentration factor setting
function。Equipped
with RS232 port。Printer
can be connected and data can be sent to PC by special
software

Capability index:

Wavelength range: 335nm-1000nm

Wavelength accuracy: ≤±2nm

Wave repeatability: ≤1nm

Transmittance accuracy: ≤±0.5%(τ)

Transmittance repeatability: ≤0.2%(τ)

Spectral bandwidth: 4nm

Stray light: ≤0.5%(t)(at 360nm NaNO2)

Dimension: 385mm*310mm*190mm(W*D*H)

Supply voltage: AC220V±22V;Frequency 50Hz±1Hz（supply
voltage for foreigh trade can be customized according to
customer’s needs）

Weight: 6.5kg

*
The company has been assessed and registered as meeting the
requirements of ISO9001:2008

*The company has been assessed and registered as meeting the
requirements of GB/T24001-2004/ISO14001:2004

It has functions
of concentration direct reading, linear regression, timing
printing, GOTOλ and
spectral scanning, another specific functions followed by the
needs of our customers.

Equipped many
optional attachments, such as different general cuvettes and
semi micro cuvettes, micro automatic operational temperature
bath etc.

Can output to
printer or PC standard (RS232)

Stand for the
different needs from our customers, choose different
wavelength interval to sample 0.2nm、0.5nm/1.2nm

Technology
parameter:

1, wavelength
range: 330-900nm

2, wavelength
instruction: four digit LED display

3, wavelength
readability: ±0.1nm

4, wavelength
accuracy: ≤±1nm

5, wavelength
repeatability: 0.5nm

6,
monochromator: grating 1200 rope/mm

7, spectral
bandwidth: 2nm

8, stray
light: ≤ 3％t (at
360nm，with
NaNO2)

9,
transmittance range: 0.-100.0％(t)

10,transmittance accuracy: ±0.5％(t)

11,transmittance repeatability: ≤0.2％(t)

12,absorbance
display: -0.172-2(A)

13,the way of
printer’s output: thermal printer

14,stability:
noise: ≤0.5％(t)/3min

Dark
current drift: ≤0.2%(t)/3min

Light
current drift: ≤0.5%(t)/3min

15,dimension:
456mm×375mm×220mm(W×D×H)

16,power
supply voltage: AC220V±22V;frequency 50Hz±1Hz(supply voltage
for foreign trade can be customized according to customer’s
needs)

17,weight:
19kg

*The company
has been assessed and registered as meeting the requirements
of ISO9001:2008

*The company has
been assessed and registered as meeting the requirements of
GB/T24001-2004/ISO14001:2004

*The products
have won the certification of good quality

* The Chinese famous brand has been awarded to the products

JK-VS-721/JK-VS-721-100 visiable spectrophotometer

Atemptation:

This instrument generally used in the lab of factory, mine,
hospital, school and scientific researching institutions, it
can run common chemical colorimetric analysis progress in a
visible light field. It can offer a high content
colorimetric testing, after adding one of the 0.5A\1A\1.5A
cutoff filter.
Click Image for Actual view

Main specifications:

Wavelength range: 360nm-800nm

Wavelength accuracy: ≤±2nm

Wavelength repeatability: ≤1nm

Transmittance range: 0.0%～200.0%

Absorbance range: -0.3 A～2.5A

Concentration display range: 0～9999

Metering mode: single beam

Spectral bandwidth: 5nm

Light source: Halogen

Dispersive components: grating

Display: four digits were

Dimension: 385mm*310mm*190mm(W*D*H)

Power supply voltage:AC220V ± 22V;frequency 50Hz ± 1Hz(supply
voltage for foreign trade product can be customized
according to customer's needs)

Weight: 6.5kg

Characteristic:

τ-A direct reading

After using the cutoff filter, the device can offer a high
content colorimetric testing.

The instrument is widely used in medical and health,
clinical examination, biochemical, petroleum chemical,
environmental protection and quality control departments,
etc.

Characteristics:
Click Image for Actual view

LCD graphic display clearly showing the testing results and
the prompt of operation process externally linked to a
thermal sensitive printer printing out the testing results
and process and store data.

There are three testing modes: photometer mode, wavelength
scanning, quantitative analysis in which there are three
analytical methods: coefficient input, one point method and
multi-points under determination, dynamic analysis and
multi wavelength testing mode

Special cuvette pairing function be able to eliminate
measurement error from cuvette pairing ( available in
photometer mode and quantitative analysis only)

Automatic zero setting / full scale set function

High precision, good reproducibility and stability

Stand for the different needs from our customers, choose
different wavelength interval to sample 0.1nm/0.2nm、0.5nm/1nm/2nm/4nm.

Technical parameter:

Wavelength range: 325nm-1100nm

Wavelength accuracy: ±1nm

Wavelength repeatability: ≤0.5nm

Spectrum bandwidth: 2nm

Stray light: ≤0.3％(τ)
(in a test at 360nm with NaNo2, the value is
0.1%t)

Transmittance display range: 0.0％～200.0％(τ)

Transmittance accuracy: ±0.5％(τ)
(Tested with NBS930D)

Transmittance repeatability: ≤0.2％(τ)

Absorptivity display
range: －0.301－4.000(A)

Baseline flatness: ±0.005(A)

Drift: ≤0.004A/h

Dimension: 456mm*375mm*220mm(W*D*H)

Power supply voltage: AC220V±22V;Frequency 50Hz±1Hz（supply
voltage for foreign products can be customized according to
customer’s needs）

Weight: 19kg

*The company has been assessed and registered as meeting the
requirements of ISO9001:2008

*
the company has been assessed and registered as meeting the
requirements of GB/T24001-2004/ISO14001:2004

*The products have won the certification of good quality

*
The Chinese famous brand has been awarded to the products

JK-AAS-4530F/JK-AAS-4530TF
Atomic Absorption Spectrophotometer

Main characteristics:

Unique light path design

Reliable flame safety system

Automatic six-lampturret system

Small flame structure analysis system

Multi-Functional software working station
Click Image for Actual view

Micro-computer automatically control operation system

Multi-functional flame atomic system

High efficient and sensitive stomic system

Integrated suspension shock absorbers optical platform:
increase the seismic resistant capacity of the optical
system, reduce the mechanical deformation caused by
temperature influencing the optical system. It can remain
stable even if the long-term use of optical signals

Advanced furnace technology:

PID technology, effectively overcome the impact of voltage
fluctuation on the temperature

Every process of temperature controlled can be accurately
controlled

increase the seismic resistant capacity of the optical
system, reduce the mechanical deformation caused by
temperature influencing the optical system. It can remain
stable even if the long-term use of optical signals